0,0 → 1,72 |
/* |
* Copyright (c) 1990 The Regents of the University of California. |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms are permitted |
* provided that the above copyright notice and this paragraph are |
* duplicated in all such forms and that any documentation, |
* advertising materials, and other materials related to such |
* distribution and use acknowledge that the software was developed |
* by the University of California, Berkeley. The name of the |
* University may not be used to endorse or promote products derived |
* from this software without specific prior written permission. |
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
*/ |
/* doc in vfprintf.c */ |
|
#if defined(LIBC_SCCS) && !defined(lint) |
static char sccsid[] = "%W% (Berkeley) %G%"; |
#endif /* LIBC_SCCS and not lint */ |
|
#include <_ansi.h> |
#include <reent.h> |
#include <stdio.h> |
#include <limits.h> |
#include <stdarg.h> |
#include <errno.h> |
|
#include "local.h" |
|
#ifndef _REENT_ONLY |
|
int |
_DEFUN(vsnprintf, (str, size, fmt, ap), |
char *str _AND |
size_t size _AND |
const char *fmt _AND |
va_list ap) |
{ |
return _vsnprintf_r (_REENT, str, size, fmt, ap); |
} |
|
#endif /* !_REENT_ONLY */ |
|
int |
_DEFUN(_vsnprintf_r, (ptr, str, size, fmt, ap), |
struct _reent *ptr _AND |
char *str _AND |
size_t size _AND |
const char *fmt _AND |
va_list ap) |
{ |
int ret; |
FILE f; |
|
if (size > INT_MAX) |
{ |
ptr->_errno = EOVERFLOW; |
return EOF; |
} |
f._flags = __SWR | __SSTR; |
f._bf._base = f._p = (unsigned char *) str; |
f._bf._size = f._w = (size > 0 ? size - 1 : 0); |
f._file = -1; /* No file. */ |
ret = _svfprintf_r (ptr, &f, fmt, ap); |
if (ret < EOF) |
ptr->_errno = EOVERFLOW; |
if (size > 0) |
*f._p = 0; |
return ret; |
} |